package edu.sctu.demo;

import javax.servlet.*;
import java.io.IOException;

/**
 * Created by Administrator on 2018/6/14.
 */
public class DemoOneFilter implements Filter{
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
            throws IOException, ServletException {

        System.out.println("这是第一个过滤器！");

        // !!! 一定要加上
        filterChain.doFilter(servletRequest, servletResponse);
    }

    @Override
    public void destroy() {

    }
}
